I/UCRC FRP: Collaborative Research / Fundamental Understanding of Localized Deformation under Severe Microstructural Gradients

I/UCRC FRP：协作研究/严重微结构梯度下局部变形的基本理解

• 批准号: 1330986
• 负责人: John DuPont
• 金额: $ 5万
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-08-01 至 2016-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1330986&HistoricalAwards=false
• 关键词: UCRC; FRP; Collaborative; Research; Fundamental

Program Director's Recommendation Center for Integrative Materials Joining Science for Energy Applications (CIMJSEA) Proposal #1330273, 1330986 This proposal seeks funding for the Center for Integrative Materials Joining Science for Energy Applications (CIMJSEA) located at the Ohio State University, and Lehigh University. Funding Requests for Fundamental Research are authorized by an NSF approved solicitation, NSF 11-570. The solicitation invites I/UCRCs to submit proposals for support of industry-defined fundamental research. The research described in this proposal will provide fundamental insights into the causes of reduced creep life in welds of modern superalloys that have severe crystallographic gradients (equiaxed and columnar), compositional gradients (microns to nm), and precipitate (0 to 80%) gradients. The ultimate goal is to develop the testing methodology that will feed the creation of digital "apps" that predict the creep response of welded structures. The ability to predict localized deformation in welds will accelerate the deployment of high temperature materials. Successful deployment will lead to higher energy efficiency of utilities and reduction of greenhouse gas emissions. The results of this research will provide an important step to improve the understanding of the relatively poor joint properties. This will pave the way for developing solutions so that new materials can be used to their fullest capacity in future generation power plants. The research conducted along the way will also provide an opportunity to train engineers who will be prepared to address these complex problems in materials for energy applications. Potential benefits to member organizations include deployment of digital apps for welds, capable of predicting the local properties as a function of crystallographic, compositional and microstructural gradients.

项目主任推荐能源应用综合材料科学中心 (CIMJSEA) 提案 #1330273、1330986 该提案为位于俄亥俄州立大学和利哈伊大学的能源应用综合材料科学中心 (CIMJSEA) 寻求资金。基础研究的资助申请由 NSF 批准的征集 NSF 11-570 授权。此次征集邀请 I/UCRC 提交支持行业定义的基础研究的提案。本提案中描述的研究将为现代高温合金焊缝蠕变寿命缩短的原因提供基本见解，这些合金具有严重的晶体梯度（等轴和柱状）、成分梯度（微米到纳米）和析出物（0 到 80%）梯度。最终目标是开发测试方法，为创建预测焊接结构蠕变响应的数字“应用程序”提供支持。预测焊缝局部变形的能力将加速高温材料的部署。成功部署将提高公用事业的能源效率并减少温室气体排放。这项研究的结果将为提高对相对较差的接头性能的理解提供重要的一步。这将为开发解决方案铺平道路，使新材料能够在未来发电站中得到充分利用。沿途进行的研究还将提供培训工程师的机会，他们将准备好解决能源应用材料中的这些复杂问题。成员组织的潜在好处包括部署焊接数字应用程序，能够根据晶体学、成分和微观结构梯度预测局部特性。